private void cfd_Click(object sender, RoutedEventArgs e) {
ssc = "size:";
asc = "author:";
esc = "ext:";
dsc = "date:";
msc = "modified:";
usc = "subject:";
useasc = false;
usedsc = false;
useesc = false;
usemsc = false;
usessc = false;
useusc = false;
OnFiltersCleared(EventArgs.Empty);
SetUpFiltersMenu();
ShowFilterMenu();
}